英语语法分析

How is strange, his arrow is all agonic.

奇怪呀，他的箭一点都不偏。

Geographical lines do exist where true north and magnetic north are aligned, and these are called agonic lines.

当真北和磁北相吻合的时候，确实存在一些被称为无偏线的地理线。

The theory and testing methods for single-mode agonic fiber optic collimator are introduced and some fabrication processes are discussed and compared.

介绍了单模无偏准直器的原理与测试方法，并对一些制作工艺进行了讨论和比较。